type InstrumentKey = {
    admin: string;
    id: string;
};
/** InstrumentMap is a helper for when you want to group values by instrument. */
export declare class InstrumentMap<V> {
    private readonly map;
    private encodeKey;
    private decodeKey;
    constructor();
    set(key: InstrumentKey, value: V): void;
    get(key: InstrumentKey): V | undefined;
    has(key: InstrumentKey): boolean;
    delete(key: InstrumentKey): boolean;
    entries(): IterableIterator<[InstrumentKey, V]>;
}
export {};
//# sourceMappingURL=instrumentmap.d.ts.map